Floor-furnace.



J. A. KLOEB. moon FURNACE. I APPLICATION rum) 3.0, 1912. 1,073,61 O, Patented Sept. 23, 1913.

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FLOOR FURNACE.

APPLICATION FILED 12.0, 1912.

Patented Sept. 23, 1913.

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1,073,610. Patented Sept. 23, 1913.

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UNITED STATES PATENT OFFICE.

JOSEPH A. KLOEB, OF PIQUA, OHIO.

FLOOR-FURNACE.

To all whom it may concern:

Be it known that I, JOSEPH A. Krone, a citizen of the United States, residing at Piqua, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Floor-Furnaces, of which the following is a specification.

The present invention relates in general to stoves and furnaces, and more particularly to that type of furnaces which are construct-ed in such a manner as to be utilized both as a hot air heater and also to heat water for a steam or hot water system.

The object of the invention is to provide an improved furnace of this character in which the heat produced by the combustion of the fuel is utilized to the fullest possible extent, which is strong and durable in its construction, and in which the various parts are compactly arranged so as to occupy a minimum amount of space.

With these and other objects in view, the im cntion consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a vertical sectional view through a floor furnace constructed in accordance with the invention, the said furnace being constructed to use gas as fuel. Fig. 2 is a horizontal sectional view on the line 22 of Fig. 1. Fig. 3 is a detail sectional view of the water head, the line of section for this view being indicated by the line 33 of Fig. 1. Fig. 4: is a vertical sectional view through a slightly modified form of floor furnace which is constructed to use coal as fuel, and Fig. 5 is a side elevation of a still further modification in which the heater is arranged in a casing adapted to rest upon the floor in the usual manner.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

In carrying out. the invention, the heater or radiator proper may be utilized in any convenient or practical manner in. connection with any hot water, steam or hot air system, or for other heating purposes, al-

Specification of Letters Patent.

Application flied April 9, 1912.

Patented Sept. 23, 1913.

Serial No. 689,510.

though the preferable embodiment of the invention resides in associating the said heater or radiator with a jacket adapted to be hung or sus ended below the floor of a building, where y the entire apparatus constitutes what may properly be termed a floor furnace.

Specifically describing the embodiment of the invention illustrated by the first three figures of the drawings, the numeral 1 designates an outer jacket or casing which is arranged in an upright position and is open at the upper and lower ends thereof. This jacket 1 is adapted to be suspended below the floor 2 of a building, and is shown as having the upper end thereof secured toa register 3 which is fitted in the floor and is flush therewith so as to form in effect a part of the floor. The lower end of the jacket 1 has a refuse catch pan 4 suspended below the same by means of the straps or hangers 5, ample space being provided between the jacket and the pan 4: to admit of a free circulation of air upwardly through the jacket.

The heater proper is mounted within the jacket 1 and is smaller than the jacket so as to provide an air space between the jacket and the heater. In the present instance the heater is arranged centrally within the jacket 1 and held rigidly in position by means of the brackets or braces 6. The heater includes an upper heating drum 7 and a lower heating drum 8 which are connected by the upright circulating and radiating tubes 9 and 10. A tubular combustion chamber 11 communicates with the bottom of the upper drum 7 at the middle portion thereof and extends downwardly entirely through the lower drum 8. A burner 12 is arranged within the combustion chamber 11 and receives suitable liquid or gaseous fuel from a fuel supply pipe -13. A valve 14 is interposed in the length of this fuel supply pipe 13and is connected by a rod 15 to a finger piece 16which is arranged in a convenient position above the floor of the building. Through the medium of this finger piece 16 the supply of fuel to the burner 12 can be regulated as found necessary.

A tubular water head 17 is mounted within the upper drum 7 and the upper portion of the combustion chamber 11. The body portion of the-water head fits accurately within the upper portion of the heating I sible extent.

drum 7, the said water head being formed with an annular pendent water leg 17 which projects downwardly into the upper portion of the combustion chamber 11. A water sup-- ply pipe 18 leads to the lower end of the water leg 17? while an outlet pipe 19 leads from the upper end of the water head. It will also be observed that a series of vertically arranged water pipes 20 extend centrally through the circulating and radiating tubes 9, and .10 and communicate at'their upper ends with the body portion of the Water head 17, the lower ends of the said water pipes 20 extending below the jacket 1 and communicating with a supply pipe 21.

A smoke pipe 22 leads laterally from one side of the upper heating drum 7 at a point below the body portion of the water head 17., the opposite side of the said body portion of the water head being formed with a substantially radial passage 23 which leads from the central opening through the tubular water head to one side of the water head and communicates through the bottom of the body portion of the water'head with the upper heating drum 7. A'transverse partition 24, shown more clearly in Fig. 2, extends across the interior of the upper heating drum 7 so as to subdivide the same into two chambers or compartments, the compartment A on one side thereof communicating with the circulating" tubes 9 and the radial passage 23 of the water head. while the compertinent B on the opposite side thereof communicates with the smoke pipe. 22. The opening at the upper end of the water head 17 and at the central portion of the upper drum 7 is normally closed by a door 25, and as'the products of combustion rise from the burner 12. they circulate freely around the water leg 17 and through the same. These products of combustion enter the chamber A and then pass through the circulating tubes 9 to the lower drum 8. From this lower drum 8 the products of combustion rise through the circulating tubes 10 to the chamber B of the upper drum and pass to the chimney through the smoke pipe 2. The Droducts of combustion thus traverse the full length of the heater three times before finally reaching the smoke pipe and the heat is in this manner utilized to the fullest pos- The 'heat radiated from the various parts of the heater serves to heat the air in the jacket 1 and this heated air rises through the register 3 and enters the room above so as to supply the same with hotair. It will also be obvious that the products of combustion act upon theit-ubular water head and also upon the water pipes 20 which pass centrally through the circulatingtubes 9 and 10 so as to'heat the water within the water head. This water may be caused to circulate through the usual radiators of a --hot water system. or a smaller amount or water noraero may be employed and the steam thereof caused to circulate through the radiators of a steam heating system.

it will be observed that the intermedlate portion of the transverse partition 24 is curved or bulged toward the smoke plpe 22 so as to cut off the upper end of the combustion chamber 11 from' direct communlcation with the smoke pipe. Thiscurved portion'of the partition 2imay be provided with a damperZB-for the purpose of producing a direct draft when starting a fire. After the fire had been started,-however, this direct draft damper would be closed and the products of combustion caused to follow the circuitous path outlined above.

' A slight modification is shown in Fig. 4c, in which the heater is constructed to consume coal as fuel. Referring to this figure, the numeral 1 designates a jacket which is very similar to the jacket 1 and is secured at its upper end to a register 3 in the floor 2 The upper end of this jacket may also be secured to the joist, if desired, by means of braces 27. The upper and lower drums 7 and 8 are secured within the jacket I, as in the previous instance by means of the braces 6 These drums 7 and 8 are connected by the, combustion chamber 11 and circulating tubes 9 and 10 as in the previous instance. The lower portion of the combustion chamber 11 is provided with a grate 28 for the support of the burning coal, an ash pit 29 being arrangedunder the grate and the usual damper 30 being arranged upon one side of the ash pit. This damppr may be controlled by means of a chain 31 which passes upwardly throughthe floor 2*. A water head 17, somewhat similar to that previously described, is arranged in the upper portion of the upper drum 7 and combustion chamber, the tubular passage through the center of the water head 17 serving as a magazine for receiving the coal and feeding it downwardly to the zone of combustion as required. A magazine 82 is arranged over the upper drum 7 and serves to feed coal to the passage through the tubular water head. Coal may be placed in the magazine 32 either at the upper end thereof or through a lateral branch 33 the said upper end ,of the magazine being 'normally closed by a cover 34, whilefthe lateral branch is normally closed by means of a door 35. With this construction fuel can be supplied to the furnace either from above the floor or from below the floor, as may be desired. The transverse partition 2tis' arranged in the upper heating drum' 7 exactly as previously described so 'that' the products of combustion follow the same "circuitous path. and travel the full length'of the furnace three times before finally entering the smoke pipe 22. The usualdamper 86 is mounted within the smoke pipe and tnlouier water leg extending downwardly smoke pipe, and a direct draft damper in into the combustion chamber, water pipes the partition for producing a direct draft extending through the circulation flues and when necessary. 7

communicating with the body portion of the In testimony whereofl hereunto affix my e water head, a smoke pipe communicating signature in the presence of two Witnesses. 15

with the u per drum, a transverse partition Y subdividing theupper drum into two com- JOSFJPH L partments for causing the products of com- Witnesses: bust-ion to circulate through the two drums J OE BURNETT, 10 and the circulation flues before entering the A. W, DEWEESE.

"Gopiiee of this patent may he obtained for five cents earth, by addressing the Commissioner of. Eatents,

Washington, D. Q. v 7 

